Psoralen

Psoralen
Names
	Preferred IUPAC name 7H-Furo[3,2-g][1]benzopyran-7-one
Identifiers
CAS Number	66-97-7 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	152784
ChEBI	CHEBI:27616 ;
ChEMBL	ChEMBL164660 ;
ChemSpider	5964 ;
ECHA InfoCard	100.000.581
EC Number	200-639-7;
KEGG	C09305; D08450;
PubChem CID	6199;
UNII	KTZ7ZCN2EX ;
CompTox Dashboard (EPA)	DTXSID00216205 ;
	InChI InChI=1S/C11H6O3/c12-11-2-1-7-5-8-3-4-13-9(8)6-10(7)14-11/h1-6H Key: ZCCUUQDIBDJBTK-UHFFFAOYSA-N ;
	SMILES O=C1/C=C\c2cc3ccoc3cc2O1;
Properties
Chemical formula	C11H6O3
Molar mass	186.16 g/mol
Melting point	158 to 161 °C (316 to 322 °F; 431 to 434 K)
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H302, H315, H319, H335
Precautionary statements	P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P340, P305+P351+P338, P312, P321, P330, P332+P313, P337+P313, P362, P403+P233, P405, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Psoralen (also called psoralene) is the parent compound in a family of naturally occurring organic compounds known as the linear furanocoumarins. It is structurally related to coumarin by the addition of a fused furan ring, and may be considered as a derivative of umbelliferone. Psoralen occurs naturally in the seeds of Psoralea corylifolia, as well as in the common fig, celery, parsley, West Indian satinwood, and in all citrus fruits. It is widely used in PUVA (psoralen + UVA) treatment for psoriasis, eczema, vitiligo, and cutaneous T-cell lymphoma; these applications are typically through the use of medications such as Methoxsalen. Many furanocoumarins are extremely toxic to fish, and some are deposited in streams in Indonesia to catch fish.^[1]